Typographic machines



L. A. SCHMITT TYPOGRAPHIC MACHINES Aug. 30, 1955 3 Sheets-Sheet 1 Filed March 18, 1952 INVENTOR. L50 AjcHM/TT Aug. 30, 1955 L. A. SCHMlTT TYPOGRAPHIC MACHINES Filed March 18, 1952 3 Sheets-Sheet 2 INVENTOR. LEO A. 5c/1/w/7'T g- 30, 1955 L. A. SCHMITT 2,716,452

TYPOGRAPHIC MACHINES Filed March 18, 1952 v 5 Sheets-Sheet 3 23 EigH9 22 W 7??? @[Ef 0 6 T? 1 5 III/9.10

7/ Big. 8.

3/ INVENTOR. L50 4. 5c/1M/TT United States Patent TYPOGRAPHIC MACHINES Leo A. Schmitt, Richmond, Va.

Application March 18, 1952, Serial No. 277,309

Claims. (Cl. 164-112) (Granted under Title 35, U. S. Code (1952), see. 266) The invention described herein may be manufactured and used by or for the Government of the United States for governmental purposes without the payment to me of any royalty thereon in accordance with the provisions of the act of April 30, 1928 (ch. 460, 45 Stat. L. 467).

The present invention relates to typographic machines, and more particularly to improvements in certain of the stop mechanisms which are manually operated for the Monotype keyboard, and another stop which is operated manually but independent of the keyboard mechanism, whereby selected settings are made for values in increments of eighteen units, which units range from four to twentytwo, to bring the range of adjustment to eighteen units.

In addition to the above selections, further settings may be made for unit values up to and including twenty-seven and thirty-six.

My improved mechanism provides means for settings values for casting one and one-half em (27 units) and two em (36 units), quads, leaders and dashes, as well as other characters.

The objects will be disclosed or otherwise appear in connection with the following description of the embodiment of the invention shown in the accompanying drawings in which:

Figure 1 is a front elevation of portions of a typographic machine, showing my improved unit rack stop guide mechanism applied to the units wheel measuring mechanism of a Monotype keyboard.

Figure 2 is a detail front elevation partly broken away and partly in section showing a unit wheel pawl operating lever with my improved measuring mechanism applied thereto.

Figure 3 is an end view of the mechanism and associated parts shown in Figure 2.

Figure 4 is a plan view of the mechanism shown in Fig ure 2.

Figure 5 is a vertical section taken on the line 55 of Figure 4 showing details of the unit rack stop assembly and shock-absorbing abutment.

Figure 6 is a detail perspective of the abutment show-l ing the cut-away clearance notch for permitting the lug located'to the right end of the unit rack to by-pass to the position shown in Figure 11.

Figure 7 is a detail front elevation of the unit rack stop guide assembly showing the location of my improved unit rack stop and my selective stop slide bolt.

Figure 8 is a detail plan view of the unit rack stop guide assembly with the unit rack short lug in engagement with my improved selective stop slide bolt which has been set into its inner engaging position.

Figure 9 is a detail front elevation of the toothed unit rack showing the location of the two stop lugs, right and center, and the rack retracting lug, left.

Figure 10 is an end view of the unit rack which is shown in Figure 9 as seen when looking at the right hand end of Fig. 9.

Figure 11 is a detail plan view similar to Figure 8, but

ice

showing the position of the toothed unit rack when the selective stop slide bolt has been withdrawn to its outer positions, where the short lug has been allowed to be bypassed, and where the centrally located long lug has moved to its outer limit.

Figure 12 is a plan view similar to Figure 11, but showing the position of the unit rack when stopped by engagement of the new unit rack stop with the central long lug of the unit rack.

Figure 13 is a detail section of the selective stop slide bolt taken on the line 13-13 of Figure 12.

Figure 14is a detail section of my cam operating lever and associated driving cam lug taken on the line 1414' of Figure 15.

7 Figure 15 is a plan view of the mechanism shown in Figure 14.

Figure 16 is a detail elevation showing my improved unit rack stop in neutral or inoperative position and also showing associated parts of the frame of the Monotype keyboard.

Figure 17 is an isometric perspective of the driving cam.

of the unit rack stop to the short lug when in the position shown in Figure 18.

Figure 20 is a detail in elevation of my unit rack stop when in position to engage the centrally located long lug of the unit rack.

Figure 21 is a fragmentary plan showing the location of the centrally located long lug of the unit rack and showing the relation of the parts as shown in Figure 20.

In the drawing, along with other detail improvements to be described later, there is shown a units wheel 19 adapted for engagement with my unit rack 20 which has been lengthened and additional teeth have been added.

The general type of composing machine that is improved by the present invention is well known, and is illustrated, for example, in Bancroft et al., U. S. Patent No. 1,193,346 of August 1, 1916. In such a machine (see Fig. 1 herein) a units rack 20 is raised against a units wheel 19 as a key is depressed. The depressing of the key also elevates one of the several conventional stop bars 13, Fig. 1. The wheel 19 is then turned by power until the lug 22 on the rack strikes the elevated stop 13. As the key is released, the wheel 19 is locked against movement, the rack 20 is dropped down out of engagement with it, and rack 20 is pulled back against abutment 51 by the unit rack restoring lever 58, the previously raised stop 13 being dropped to its lowered, inactive, position. When the rack 20 is moving to-and-fro, its short lug 22 clears the stepped surfaces of the upper ends of the stops 13 (inside the upwardly projecting tips thereof), and therefore, to stop the advance of the rack 20 toward the right in Fig. 1, when it is raised into contact with wheel 19, the selected stop 13 in the conventional machine is raised upwardly a substantial distance.

In accordance with one feature of the present improvement, the lug 22 may be caused to cooperate conventionally with any one of the conventional stop means 13, at least one of which may be of the improved form shown at 67 herein. Beyond this, the rack 21) is provided with a second, longer lug 21, that may cooperate in a special manner with theimproved stop means 67, and a selective stop slide 2630 is provided, that stands in the way of conventional lug 22 to limit the travel of rack 20 when it is operated conventionally, and that retracts to allow the lug 22 and rack 20 to move beyond its normal length of travel (clearances being provided to permit this) when the cooperation of the long lug 21 with the stop means 67 is to be employed, as hereinafter more fully described.

Since movement in one certain direction, of the selected element 13, is employed to place it in position to cooperate with the lug 22 (such movement being upwardly in the conventional machine) the same movement of the improved element 67 is conveniently employed to cooperate with the lug 22, and a different movement that does not position the stop 67 in the path of the lug 22, is employed to place it in the path of the long lug 21. In the form shown, in which the long and short lugs 21 and 22 are placed at the same elevation on the rack 20, the long lug is formed to project outwardly to a greater extent than does the short lug 22. With this arrangement, since the elements 13 or 67 are selectively elevated to lie in the path of the short lug 22 for conventional operation, the element 67 cannot be similarly elevated to lie in the path of the long lug, because it would then also lie in the path 9 of the short lug. Therefore, with this arrangement, the element 67 is arranged to be moved inwardly, instead of upwardly, sufiiciently to place its upwardly extending tip in the path of the extending tip of the long lug 21 when it is to cooperate therewith, such inward movement not being sufiicient to place the upwardly extending tip of element 67 in the path of the short lug 22.

Referring now to Figs. 1, 8 and 9, it will be seen that in the form shown, the unit rack has been lengthened as compared to the conventional unit rack so that its conventional short lug 22 (at the right) and its conventional retracting lug 23 (at the left) are spaced farther apart than is conventional, and that the newly provided long lug 2.1 is located centrally between them and, with the stop means 67 located as shown, augments the measuring value obtainable by the stop action by an additional number of units, e. g. fourteen units in the disclosed embodiment.

The fourteen units added to the standard maximum range of twenty-two units increases the unit value to thirty- The machine may be normally operated on the lug 22 position or selectively operated on the lug 21 position with its added unit values. The by-pass opening 24 in the block 25 may be closed by my selective stop slide bolt 26 which is slidahly operated in slot 29 by a knurled head 30.

The bolt 26 is held in either of two positions in the slot 29 by a ball detent 32 which is held in either of the selected position by spaced counter-sunk recesses 28 located in the side of the bolt 26. The detent 32 is resiliently r pressed against bolt 26 by a spring 33 in the block 25.

The selective stop slide bolt 26 is shown in more detail in Figure 13 and the inner engaging position is shown in Figure 8 where the bolt 26 is shown in engagement with the unit rack short lug 22 in its travel to the right. In this position, the measuring mechanism of the keyboard has been restored to standard operation, thereby permitting type faces in which twenty-two unit bodies may be composed in the normal way.

When the selective stop slide bolt 26 is set in the outer position, as shown in Figure 12, the lug 22 has been by- I passed and the unit rack 20 has traveled to the right until the lug 21 has engaged the unit rack stop 67 which has previously been set, further travel to the right is checked, as shown in Figures 20 and 21.

As the unit rack 26 travels to the right, it encounters other parts in the standard machine, which must be cleared for the operation of the unit rack 21 This action is shown in Figures 2 and 3.

A slot 35 is provided in the unit rack stop guide abutment 36 to permit the lug 22 on unit rack 20 to pass freely. The abutment 36 is prevented from rotation in its bearing by a pin 37 projecting into a slot 39 which allows the abutment 36 free sliding action so as not to interfere with the shock-absorbing action of the spring 41 (see Figures l, 5 and 6).

The unit wheel pawl latch 41 has an off-set 42 to provide a bypass clearance for the unit rack 20 and the bracket 38 is milled to provide additional by-pass clearance for the new unit rack 2i] which is necessary due to the lengthening of the new unit rack 20.

Due to its increased length, and to permit free movement to the left, clearance for the new unit rack 20 is provided by moving the unit rack abutment bracket assembly 44 to the left (see Figures 1, 2, 3 and 5). Clearance for the lengthened unit rack 26 is provided by suitably milling the bracket 38 (Figures 2 and 5).

A clearance cut 48 in the unit rack slide boss 49 (see Figure 1) allows the unit rack slide 50 to operate freely beneath the unit abutment bracket 44 in its new position.

Unit rack abutment S1 and unit rack abutment detent operate in the normal fashion, but for their actuation an extension 53 is provided, carrying a hammer 54 which is attached to the tension arm connecting rod lever roller bearing 55, located on the end of the unit wheel pawl operating lever 57 (see Figures 2 and 4).

For restoring the lengthened unit rack 20, lengthened unit rack restoring lever 58, fulcrumed on a stud 60, has been provided (see Figures 1 and 2).

The unit rack restoring lever 58 is similar to but longer than the conventional lever; however, a bracket 62 is provided to raise the fulcrum stud to increase the length of the are for restoring the lever 58 (see Figures 1, 2 and 3).

A bracket 59 is provided to accommodate a tension spring 64. Adjustment of the tension spring is accomplished by means of a screw 65 and knurled lock nuts 66.

The novel features for selectively positioning the unit rack 26 are shown more clearly in Figures 14 to 21 inelusive.

The new unit rack stop 67 is adapted to be moved in and out of active position, in a substantially horizontal direction to cause its tip 72 to lie in the path of the tip of the long lug 21, but not in the path of the short lug 22, when twenty-seven units are to be measured in the form shown, and also it may be rocked up and down so as to lift the step 72a, corresponding to the step of the conventional stops 13, that is located at the upper end of the hook-shaped extension 71 of the stop 67, into the line of travel of lug 22. The unit rack stop 67 is manually operated from the keyboard of the Monotype machine through either of the stop bars 74 or 78 depending upon the setting desired. Thus the new unit rack stop may be used, by manipulating stop-bar 78, for measuring one and one-half em (27 units) elements, and in addition, the new unit rack stop 67 permits settings in the normal way to measure all type bodies carried in their regular unit positions in matrix case, in which case it is manipulated in thenormal manner by stop-bar 74, corresponding generally to the stop-bars associated with the stops 13.

The neutral or inactive position of the unit rack stop 67 is shown in Figure 16. In this position, the rack 20 is in its lowered position as shown in Fig. 1, and in this position the lugs 21 and 22, as shown, pass above the step 72a in the clearance space bounded at 72 and 72a, as during retraction of the rack 20 by the retracting lever 58 (Fig. l). The tip 72 of the stop 67 is held laterally away from the path of the tip of the stop lug 21 by a tension spring 88, which is secured between the stop 67 and bracket 89 located on the frame structure of the machine, and provision is made for movement to the left of the bearing in the recess 73 in the stop bar 74.

Figs. 18 and 19 show the relative positions of the stop member 71 and the short lug 22 when the stop member is being used for the measurement of units in the same way as the conventional elements 13 (Fig. 1). In this circumstance the rack 20 is in its elevated position (engaging the wheel 19 in Fig. 1), and the stop member 71 is rocked upwardly about the pivot 69 (Fig. 16) by the descentof the stop bar 74 (Fig. 16), the member 86 remaining in the position shown in Fig. 16, since the special stop bar 78 (Fig. 14) is not operated. As shown in Fig. 18, the step 72a in this instance is raised from the neutral or dotted position (corresponding to the position shown in Fig. 16) to lie in the path of the short lug 22.

Figs. 20 and 21 show the relative positions of the stop member 71 and the long lug 21 when these elements are being used, as for the measurement of one and one-half ems. In this instance the rack 20 is again raised (into engagement with wheel 19, Fig. 1). This raising of the rack lifts it and its rack-carrier up above the level of the step 72a of member 71 in its neutral position, shown in dotted lines in Fig. 20. As more fully described hereinafter, the bar 78 (Fig. 14) being operated, rocks the bellcrank 82, 83, 85, 86 (Figs. 14 and 16) about its pivot 84, and arm 86 (Fig. 16) moves the unit rack stop 67, 71 in the direction of the horizontal arrow in Fig. 16. Its end 71 (see Fig. 20) is thus moved inwardly, from the dotted line position to the solid line position, the elevation of the rack 20 affording the necessary clearance. The inner edge 72 of the tip of element 71 above the step 720 is thus positioned in the path of movement of the long lug 21, but out of the path of movement of the short lug 22 (shown in dotted lines). The rack 20 is thus free to advance until the tip of the long lug 21 strikes the tip of the membcr 71 as shown in Figs. 20 and 21.

As shown in Fig. 14, to shift the unit rack stop from the neutral or inactive position as shown in Figure 16, a second keyboard operated stop bar 78 is provided which has a recess 77 for receiving the extension 79 of an arm 76 of the rocker arm 75. This arm 75 is pivotally mounted on the transverse shaft 69 which is secured in the frame structure of the machine.

The shaft 69 also provides a support for the stop 67.

The rocket arm 75 has an extension 80 which is connected by a toggle link 81 to the member 82 of a rocker 83 pivotally mounted on the cross-shaft 84. A connecting web 85 extends between the member 82 and the upturned driving cam lug 86 (see Figures 14, and 17).

The unit rack stop 67 is provided with a cam way 87 to receive the cam lug 86 for transmitting horizontal motion to the left through movement of the lever 75 to cause the off-set stop 72 to limit the travel of the lug 21 on the unit rack 20, as shown in Figures and 21.

It will be seen that the special stop 67 of the present improvement is thus made to serve a double function in selectively engaging one or the other of the lugs 22 and 21, and that these two lugs also cooperate selectively with the bolt 2630, thereby affording an especially simple, compact arrangement for performing the functions of the conventional machine and the additional functions of measuring abnormal numbers of units, e. g. for one and one-half and two em measurements.

What I claim is:

1. In a typographic machine having a horizontally reciprocative unit rack adapted to travel in a direction from left to right, provided with a long lug at the extreme left and a short lug located to the extreme right thereof, the improvement which consists of a centrally located lug, means for engaging said short lug or bypassing said short lug and engaging said central lug, said means consisting of a slide bolt, a block having a slot located tranversely to said unit rack for slidably receiving said bolt, and having a clearance slot running parallel with said unit rack for permitting passing of said short lug, said block being of suflicient height to prevent further travel of said central lug by engagement with a side of said block, said bolt consisting of a fiat blade having a knurled head for selectively setting the same, ball receiving recesses on a side of said bolt, spring pressed ball detents located in bore holes in said block for holding said bolt in lug engaging or disengaged position.

2. In a typographic machine of the type that has a horizontally reciprocative unit rack adapted for operative travel in a direction from left to right, a unit stop engaging lug projecting therefrom, a set of unit rack stops selective ly movable to positions in the path of said lug, and a rack motion limiting abutment in the path of said lug to the right of said set of stops: the improvement that comprises a second lug on the rack to the left of said first lug and having a portion thereof moving in a path other than that in which the first lug moves when the rack is moved, and means for moving said motion limiting abutment out of the path of said first lug and into a position to be engaged only by said portion of said second lug.

3. In a typographic machine according to claim 2, the combination with said improvement of at least one special unit rack stop in said set that is movable into a first position lying in the path of said first lug, and movable to a second position lying outside the path of said first lug but in the path traveled by the said portion of said second lug, means for moving said special unit rack stop into said first position, and means for moving said special unit rack stop into said second position.

4. A typographic machine according to claim 3, in which said first lug projects sideways from said'rack at a given level, in which said second lug projects sideways from said rack in the same direction and at the same level as does said first lug, but to a greater extent than said first lug, said machine comprising means for selectively vertically displacing the stops of said set including said special stop to position any one of them in the path of said first lug, and separate means for horizontally displacing said special stop to cause a portion thereof to lie in the path traveled by said longer second lug, but outside the path traveled by said first lug.

5. In a typographic machine, the combination with a horizontally reciprocating unit rack, of first and second stop lugs longitudinally spaced from each other thereon, said lugs traveling in paths of at least partially different cross-section as they are moved by the rack, a unit rack stop selectively movable into three positions, in the first of which it lies in the path of the first of said lugs, in the second of which it lies out of the path of said first lug, but in the path of said second lug, and in the third of which it lies out of the path of both lugs, means for moving said unit rack stop from said third position into said first position, means for returning said unit rack stop from said first position to said third position, selectively operable means for moving said unit rack stop from said third position into said second position, and means for restoring said unit rack stop from said second position to said third position.

References Cited in the file of this patent UNITED STATES PATENTS 347,629 Mergenthaler Aug. 17, 1886 777,262 Lyman Dec. 13, 1904 899,615 Pool Sept. 29, 1908 1,057,803 Chapman Apr. 1, 1913 1,545,578 Benedict July 14, 1925 1,898,683 Payne Feb. 21, 1933 2,058,137 Curtiss Oct. 20, 1936 

